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Finding the Fourth Proportional to 465,015.81, 697,531.82 and 128,054.73

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Solution

The fourth proportional to 465,015.81, 697,531.82 and 128,054.73 is: 192,084.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,015.81 : 697,531.82 = 128,054.73 : x
  2. Step 2: Convert to fraction form
    465,015.81/697,531.82 = 128,054.73/x
  3. Step 3: Cross multiply
    465,015.81x = 697,531.82 × 128,054.73
  4. Step 4: Simplify right side
    465,015.81x = 89,322,248,236.23
  5. Step 5: Solve for x
    x = 89,322,248,236.23/465,015.81
  6. Step 6: Final answer
    x = 192,084.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.